LEP and polycystic ovary syndrome: In the PCOS group, the serum leptin concentration correlated with the total fat (r = 0.36, p = 0.02), SFA (r = 0.43, p < 0.01), and MUFA (r = 0.37, p = 0.02) contained in the diet, whereas serum ghrelin concentrations correlated, in an inverse manner, with the total fat (r = −0.37, p = 0.02), total cholesterol (r = −0.36, p = 0.02), MUFA (r = −0.37, p = 0.02), PUFA (r = −0.34, p = 0.03), and LC-PUFA (r = −0.38, p = 0.02) contained in the diet.